The free, cross-platform application Dropbox—which readers voted the best file syncing tool available—has updated its web interface, adding new and improved navigation and drag-and-drop support for all the files and folders in your Dropbox. If you're looking for ways to put your Dropbox account to good use after the holidays, the photos section of their web interface offers a simple way to get started sharing photos with anyone, whether they use Dropbox or not.